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Marius CiepluchandClaude Opus 5
0fcd5feade
contributor-scan 2.5. VAmPI's `host='0.0.0.0'` is now reported exactly once, at app.py:17:<module>. Before task 2.2 it was reported eight times in eight files that do not contain it; after 2.2 it was reported nowhere. Two causes, one shape: nothing could ask about module-level code. **The main-guard marker is not a function.** `__main__` is what the mapper emits for `if __name__ == '__main__':`. Sent to the engine as a function name it matched nothing, because a CPG calls a file's top-level code `<module>` -- verified against the VAmPI CPG rather than assumed. The region model translates the marker, which is the one place that turns what the mapper meant into what the scanner asks. **A function-scoped file had no region for its module body.** Settings, route registration and globals live in no function, and every region's query filters by function name. A file-level region beside the handlers would report each handler's findings a second time, which is why the earlier rule dropped it as "a second full-file pass". A module-scope region PARTITIONS the file instead of overlapping it. That only became cheap after batching: before it, a region was a JVM. Two things this needed to be correct rather than merely present: - A module method spans its whole file, so the taint query's line-range containment made `<module>` the parent of every function in it. Under module scope, membership is direct -- otherwise the module region reports every handler's sinks again, which is the duplication the old rule was avoiding. - A module body is not a handler. The marker-derived region inherited the handler families and entailed a missing authorization check on the main guard: a finding with no possible remediation. Caught by the first repository run that had the region, and now covered by a test. bind address 8 wrong files -> 0 -> 1, at app.py:17:<module> regions 22 -> 25 entailed 8 -> 9 query time 37.4s -> 41.3s peak RSS 827MB -> 823MB cost $0.0067 -> $0.0068 Three more regions for four seconds and no more model calls: the budget is a total and was already spent, so regions_unasked rose 17 -> 20 -- those regions got the free pass and are reported as unasked, not as clean. `<module>` is Joern's Python name for a module body; JavaScript uses `:program`, so this is verified for Python only. Gates byte-identical. Co-Authored-By: Claude Opus 5 (1M context) <[email protected]> Claude-Session: https://claude.ai/code/session_01T7XD7x5KonMdmGRkp63EQG